Automatic controller.



No 860,882. PATEETED JULY 23, 1907. A. E. OSBORN. AUTOMATIC CONTROLLER.

APPLIOATIOR FILED MAR. 27, 1905.

win/5885s:

I v w I v mom UN TED STATES PATENT F ICE;

ALDEN E. OBBOR-N, OF NEW YORK, N. Y.

Specification of Letters Patent.

Application filed March 2'7, 1905. Burial No. 262,231.

AUTOIdATIC CONTROLLER.

Patented July 23, 1007.

To all ibhom it may concern: I

Be it known that I, ALDEN E. Osnonn, a citizen of the United States, anda resident of the city of New York, (borough of the Bronx,) in thecounty and State of New York, have invented a new and Improved AutomaticController, of which the following is a full,

clear, and exact description The 'inventionrclates to an automaticcontroller designed especially for use with railway trains, but usefulinother connections as will suggest themselves to skilled mechanics.

The principal object of my invention is to provide improved means forautomatically closing the throttle valve of a locomotive. should theengineer disregard a signal to stop or slow down his train to which cndIprovide a peculiarly constructed fluid pressure motor thcpressure in thepipe I).

in connection with the throttle and associated with means forautomatically affectingthe operating pressure so as to bring about the.operation of the motor at the propcrjtim e. Preferal ly. in connectionwith these devices I make provision for venting the train line of theautomatic air .brake system thus applying the brakes as well asthrottling the engine. I

The invention involves various other features of major or minorimportance, all of which will be set forth hereinafter and particularlypointed out in the claims.

Reference is to be had to the accompanying drawings which illustrate asan example the preferred embodiment of my invention, which dmwings likecharacters of reference ind icatc like parts in the several views, andinwhich'- 7 Figure '1 is a partial side view ofa locomotive showing myinvention applied; and. Fig. 2 is a sectional view of the throttleoperating motor or device.

a indicates the throttle lover of the locomotive, this lever controllingthe throttleor steam supply valve in the usual manner.

1) indicates a pipeleading from a device which will lie hereinafterdescribcd, by means of which the throttle valve may be automaticallyoperated upon releasing 0 indicates the brake valve of the usualautomatic air brake system, and dihc tmin line'or pipe. From 4 saidtrain line (I a branch (1 passes and this brunch 'coni-' munlcates withthe pipe b, check vnlvcsfainl f being provided to prevent the return ofpressure. The branch pipe (2 passes upthrough the roof of the cab, and

: communicates with a whistle 29 contained within a I carries abreakable tube 30 which rctains the pressure casing 27 monntc l on topof the cab. Said casingf27 within the casing.

g indicates a smnap'horc post or stand which is placed on thoroud birdalong side of the track and h the usual semaphore arm, or other" visualsignal. Preferably th se parts are the same as those employed in theordipiston 31.

nary block sigial system excepting that the semaphore arm h is placedlower than ordinarily, and the location of the tube 30 and the arm h areso arranged that when said arm is run out into horizontal position, orthat which it usually occupies to bar the passage of the train, the tube30 will be engaged with the arm and said tube fractured or dislocated soas to vent the pressure from the casing 27. as described, when it isdesired to bar the passage of the train the semaphore arm may be thrownout as usual.

Consequently with the parts arranged This device comprises a cylindricshell 2Z6 fastened within the boiler of the locomotive, and having astuff inghox and gland 27f-'to which'thc throttle rod 28 passes.

end, andattachecl to the rod 28 within the shell is a Steam pressurefrom the boiler enters the shell at each side of the piston through thevent 30, and this balances the pressure in said piston, allowing the.throttle lever tobc operated freely by the engineer. Extending from theinner endof the shell 26 is a passage 32, which leads outward to anipple 33 outside of the boiler. With this nipple, the before describedpipe bis connected. It will be seen that upon venting the pressure fromthe pipe b the pressure on the inner side of the piston 31 will berelaxed, thus permitting the uu changed pressure on the outer side ofthe said piston to move the piston and its connections inward, thusautomatically closing the throttle valve. This device-docs Thethrottle-rod 28 passes on through the cy' lindric shell 26" to the usualconnection with the throttle valve. Said shell is provided with a vent30- in each not, however, interfere with the free operation of thethrottle-waive. when therefore the engineer 'disro;

gards the semaphore and tubcBU is bioken, pressure is vented both fromthe train line and inner end of cy'l inder 26"causingsn emergencyapplication of thc brukes and a movement of rod 28 closing, the throttlevalve and stopping the engine. Before the train can, proceed it will benecessary to replace the tube 30, release the brakes and return thethrottle lever to the position hown in Fig.2.

1 Having thus described the preferred form of myinvcntion, what I claimas new and dcsiro to secure by Letters Patent is; v

l. ';lhc.comhinutionv with :1 device or 'Whlch is movable and connm-lcdwith. the device to-be to be opened liliifl' walls lnchislng fluidpressure, of a cylinder and piston, one

eluding 1r hrcaknble pressure retaining part.

operated. the piston operating in the cylinder and the cylinder locatedwithin said walls and having each end freely open to the fluid pressuretherein, and menus for relieving" the pressure from one end of thecylinder.

2. The combination with a locomotive and it's throttle rod, of acylinder located in the locomotive holler and huv- I irod extendingthrough the cylinder-,a piston attached to the throttle rod rind locatedwithin the cylinder, and means for venting thepresshre from one end oithe cylinder,

said means including a hreukahiepressure retaining part.-

4. The combination 'with walls' inclosing liuid pressure and u device'tohe oper'uted of a'cylinder and piston located xrithln the walls, thecylinder and piston being relatively movable and the mibvaiiii'efelmcnthaving conn'eetlon wlth mild device to be operated, the cylinder hav'log each end freely open to expose-horn sides of the piston to thesaid'iluld pressure and means for venting the pressure from the cylinderat one side of the piston. The combination with walls lnclosing, fluidpressure and a device to he operated, of a cylinder and piston locatedwithin the Walls, the cylinderand piston being relatively movalile andthe movable element having connection with said device to be operated,the cylinder having each end open "10 mipose both sides of the piston tothe said il uid pressure and menus for venting the pressure from thecylinder at one side of the piston, said means in 6.-The comhiu'ntionwith a reservoir for fluid pressure, of a cylinder arranged therein andhaving its ends freely upon to the "pressure, a means ifor venting thepressure from one end of the cylinder, a piston in the cylinder andonoperating rod connected ,to tho piston.

7. 'lhef combination withn'locomotlvc and its throttle rod of a cylinderarranged in the locomotive holler, and having its endf open to the some,a piston in the cylinder and connected to the throttle rod and means forventing the pressure from one end 0! the cylinder.

B. The combination with a locomotive and its throttle rod 01 a cylinderarranged in the locomotive boiler, and having its ends' open to thehome, a piston in the cylinder and connected to the throttle rod vandmenus for venting ,the pressure from one end of the cylinder, gold meansincluding e'breaknble pressure retaining part projecting beyond thelocomotive tor the purpose specified.

D. The combination with a locomotive of ncyllnder havln one end securedin an orifice in the locomotlveboiler, the cylinder projecting into theboiler and having its ends open to the pressure therein, means forventing the pres' sure from one end 01' the cylinder, n piston in thecylinder, n throttle rod connected to the piston and a means foroperatin the rod located outside of the boiler.

1.0, The combination with. u locomotive ,ot a cylinder having, one endsecured in an orifice in the locomotive boiler, the cylinder projectinginto the holler-and having its ends open to the pressure therein, meansfor venting the pressure from one end 0! the cylinder, :1 piston inthecylinder, :1 throttle .rod connected to the piston and n llli1nS,-f0l'operating the rod located outside of the hollem said means for ventingone and of the cylinder including;

a breakable pressure retaining part projected beyond the ALDEN EOSBORN.

Witnesses: I

' Isaac, it. (l nks,

